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16#include <linux/init.h>
17#include <linux/interrupt.h>
18#include <linux/fsl_devices.h>
19#include <linux/of_platform.h>
20#include <linux/io.h>
21
22#include <asm/cpm2.h>
23#include <asm/udbg.h>
24#include <asm/machdep.h>
25#include <asm/time.h>
26
27#include <platforms/82xx/pq2.h>
28
29#include <sysdev/fsl_soc.h>
30#include <sysdev/cpm2_pic.h>
31
32#include "pq2ads.h"
33#include "pq2.h"
34
35static void __init mpc8272_ads_pic_init(void)
36{
37 struct device_node *np = of_find_compatible_node(NULL, NULL,
38 "fsl,cpm2-pic");
39 if (!np) {
40 printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n");
41 return;
42 }
43
44 cpm2_pic_init(np);
45 of_node_put(np);
46
47
48 pq2ads_pci_init_irq();
49}
50
51struct cpm_pin {
52 int port, pin, flags;
53};
54
55static struct cpm_pin mpc8272_ads_pins[] = {
56
57 {3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
58 {3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
59
60
61 {3, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
62 {3, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
63
64
65 {0, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
66 {0, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
67 {0, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
68 {0, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
69 {0, 18, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
70 {0, 19, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
71 {0, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
72 {0, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
73 {0, 26, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
74 {0, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
75 {0, 28, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
76 {0, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
77 {0, 30, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
78 {0, 31, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
79 {2, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
80 {2, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
81
82
83 {1, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
84 {1, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
85 {1, 20, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
86 {1, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
87 {1, 22, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
88 {1, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
89 {1, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
90 {1, 25, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
91 {1, 26, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
92 {1, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
93 {1, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
94 {1, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
95 {1, 30, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
96 {1, 31, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
97 {2, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
98 {2, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
99};
100
101static void __init init_ioports(void)
102{
103 int i;
104
105 for (i = 0; i < ARRAY_SIZE(mpc8272_ads_pins); i++) {
106 struct cpm_pin *pin = &mpc8272_ads_pins[i];
107 cpm2_set_pin(pin->port, pin->pin, pin->flags);
108 }
109
110 cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX);
111 cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX);
112 cpm2_clk_setup(CPM_CLK_SCC4, CPM_BRG4, CPM_CLK_RX);
113 cpm2_clk_setup(CPM_CLK_SCC4, CPM_BRG4, CPM_CLK_TX);
114 cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK11, CPM_CLK_RX);
115 cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX);
116 cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK15, CPM_CLK_RX);
117 cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK16, CPM_CLK_TX);
118}
119
120static void __init mpc8272_ads_setup_arch(void)
121{
122 struct device_node *np;
123 __be32 __iomem *bcsr;
124
125 if (ppc_md.progress)
126 ppc_md.progress("mpc8272_ads_setup_arch()", 0);
127
128 cpm2_reset();
129
130 np = of_find_compatible_node(NULL, NULL, "fsl,mpc8272ads-bcsr");
131 if (!np) {
132 printk(KERN_ERR "No bcsr in device tree\n");
133 return;
134 }
135
136 bcsr = of_iomap(np, 0);
137 if (!bcsr) {
138 printk(KERN_ERR "Cannot map BCSR registers\n");
139 return;
140 }
141
142 of_node_put(np);
143
144 clrbits32(&bcsr[1], BCSR1_RS232_EN1 | BCSR1_RS232_EN2 | BCSR1_FETHIEN);
145 setbits32(&bcsr[1], BCSR1_FETH_RST);
146
147 clrbits32(&bcsr[3], BCSR3_FETHIEN2);
148 setbits32(&bcsr[3], BCSR3_FETH2_RST);
149
150 iounmap(bcsr);
151
152 init_ioports();
153 pq2_init_pci();
154
155 if (ppc_md.progress)
156 ppc_md.progress("mpc8272_ads_setup_arch(), finish", 0);
157}
158
159static struct of_device_id __initdata of_bus_ids[] = {
160 { .name = "soc", },
161 { .name = "cpm", },
162 { .name = "localbus", },
163 {},
164};
165
166static int __init declare_of_platform_devices(void)
167{
168 if (!machine_is(mpc8272_ads))
169 return 0;
170
171
172 of_platform_bus_probe(NULL, of_bus_ids, NULL);
173 return 0;
174}
175device_initcall(declare_of_platform_devices);
176
177
178
179
180static int __init mpc8272_ads_probe(void)
181{
182 unsigned long root = of_get_flat_dt_root();
183 return of_flat_dt_is_compatible(root, "fsl,mpc8272ads");
184}
185
186define_machine(mpc8272_ads)
187{
188 .name = "Freescale MPC8272 ADS",
189 .probe = mpc8272_ads_probe,
190 .setup_arch = mpc8272_ads_setup_arch,
191 .init_IRQ = mpc8272_ads_pic_init,
192 .get_irq = cpm2_get_irq,
193 .calibrate_decr = generic_calibrate_decr,
194 .restart = pq2_restart,
195 .progress = udbg_progress,
196};
197